The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 20, 2005

Filed:

Apr. 07, 2003
Applicants:

Kevin J. Kinerson, Corinth, VT (US);

Mark Gugliotta, Concord, NH (US);

Christopher J. Conway, Wilmot, NH (US);

Darrin H. Mackenzie, Windsor, VT (US);

Inventors:

Kevin J. Kinerson, Corinth, VT (US);

Mark Gugliotta, Concord, NH (US);

Christopher J. Conway, Wilmot, NH (US);

Darrin H. MacKenzie, Windsor, VT (US);

Assignee:

Thermal Dynamics Corporation, West Lebanon, NH (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K010/00 ;
U.S. Cl.
CPC ...
Abstract

A cooling system for a plasma arc torch is provided that comprises a coaxial fluid flow that improves cooling of components within the plasma arc torch and that provides a more compact torch design. The coaxial fluid flow, namely, the cooling fluid flow, is distributed circumferentially about the central longitudinal axis of the torch and is flowing in the same direction at any radial location from the central longitudinal axis. The cooling fluid flows distally towards the consumable components, then proximally towards the torch head, then distally again, and then proximally again for recirculation. Additionally, both the plasma gas flow and the secondary gas flow are also flowing coaxially in addition to the cooling fluid flow.


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